Protected
Readonly
labelProtected
toProtected
Readonly
windowProtected
handleOptional
widget: WidgetProtected
updateUpdates the title of the application based on the currently opened widget.
Optional
widget: WidgetThe current widget in the main
application area. undefined
if no widget is currently open in that area.
Called when the application is started. The application shell is not attached yet when this method runs. Should return a promise if it runs asynchronously.